It looks like the researchers have found a way to reduce the environmental impact of air travel at a time when electric planes and alternative fuels are not yet as efficient. Scientists at Oxford University have successfully converted carbon dioxide into jet fuel, increasing the potential for conventional aircraft with zero carbon footprint.
As part of the experiment, the team heated a mixture of citric acid, hydrogen, and an iron-manganese-potassium catalyst to 662 Fahrenheit Celsius to convert CO2 into a liquid fuel capable of powering jet planes. Only a few grams of the substance was obtained, but this is just the beginning.
This approach is inexpensive, uncomplicated, and uses conventional materials. It is cheaper than analogs due to its low electricity consumption. Scientists plan to install such plants near coal-fired power plants or even extract CO2 from the air to produce fuel.
There are many challenges associated with bringing this to planes. The laboratory method only produced a few grams of fuel. The process needs to be scaled up, but researchers are already in talks with industrial partners and do not see any major scientific obstacles.